i think this is very is he ductive if you're in the pentagon you have this list of individuals that you believe are plotting against the united states and so if you can sort of cross these names off the list it makes it feel as though you're keeping the united states safer. i think there is a faulty logic going on in there because we've really seen over the past decade the u.s. has been fighting these wars they're just killing these particular individuals doesn't itself make us safer because so often many more people come up. within the ranks. and i think there's also a tendency within the u.s. to sort of personalize al qaeda. so particularly in yemen we saw this with the american born cleric. this is the individual that the argument was advanced by some if he could be killed that the u.s. would be safer. he was of course killed in a drone strike in september of e 2011. al qaeda continues to plot. we know that they had a plan in which they gave this latest version of the underwear bomber thankfully to an undercover agent. so now he's been crossed off the list. and now we talk about the